1991 Acura Legend White Sweet Smoke, No Over Heating.

Hi, I've beeing driving a 91 Acura legend for about a month now, my god father owned it before me and He took pretty good care of it, changed what needed to be changed and all that at the miles the manual said, however, he had a over heating problem when he sold me the car, he was told to remove the thermostat so he did he drove on it for a year without a thermostat and it didnt over heat once, just had to refill the coolant every day, when I bought the car off of him, I installed a new thermostat, and it still over heated but I noticed the hose connected to my thermostat was leaking a little so I bought a screw clamp instead of the original worn out clamp, and that fixed my over heating problem, but now I have white smoke that occasionally comes out, when I go. And it smiles semi sweet and I just cant figure out whats wrong with it, I don't think its a blown head gasket because it comes no where near close to over heating anymore. I don't smell coolant in the car unless I have the sun roof open and The smoke floats in through the roof, Its not a whole bunch of smoke, but it smokes a decent amount and it defiantly doesn't smell like your typical exhaust any ideas on what it could be? Oh and also my coolant resivour I have noticed files up over the max limit after I drive for a while. It files up almost near the cap, but I don't over heat every morning I take my radiator cap off, and level out my coolant, I've been thinking if I do a radiator flush it hopefully might fix my problem that or If I run Blue Devil head gasket sealant through my radiator system, but I dunno I would appreciate your guy's input on this.